THIRD SERIES.] 
[vol. I.— No. 3. 
CONTENTS. 
PAGE 
27. — Report on the Mosses, Hepatics, and Lichens of the Mourne Mountain 
District. By Rev. Heney "William Lett, M. A., Dub., . . . 265 
28. — St. Patrice de Rouen. By J. Casimir O'Meagher, .... 326 
29. — Notes on the History of the Irish Wolf-Dog. By Professor J. P. 
O'Reilly, . .333 
30. — On the Stability and Small Oscillation of a Perfect Liquid full of nearly 
Straight Coreless Vortices. By Siii W. Thomson, F.R.S., Hon. 
31. — Report on the Botanj^ of South Clare and the Shannon. By S. A. 
Stewart, Fellow of the Botanical Society of Edinburgh, Curator of 
the Collections in the Museum of the Belfast Natural History and 
32. — Report on some Actiniae Dredged off the South-west Coast of Ireland in 
May, 1888. By Professor A. C. Haddon, 370 
33. — A Note on the Determinant in the Theory of Screws. B}'^ Sir Robert I 
S. Ball, F.R.S., 375 | 
34. — On the occurrence of Zinnwaldite in the Granite of the Mourne Moun- 
tains. By Professor W. J. SoLLAS, LL.D., F.R.S., . . . .379 
35. — A Commentary on the ,€olloquies of Garcia de Orta, on the Simples, 
Drugs, and Medicinal Substances of India. By Y. Ball, LL.D., 
F.R.S. , Director of the Science and Art Museum, Dublin, . . . 381 
36. — On the Use of Two Inflexional Forms of the Terb in Irish. By Robert 
Atkinson, M.A., LL.D. , Secretary of Council, 416 
37. — On the Plane Circular jBections of the Surfaces of the Second Order. 
By the Right Rev. Charlks Graves, D.D., Bishop of Limerick, . 442 
Mem., R.I.A. (Plate XIX.); 
340 
Philosophical Society, 
343 
Minutes of the Meetings of the Academy, 
41-62 
Abstract of Treasurer's Statement of Accounts for 1889-90. 
Dublin : Printed at the University Press, by PONSONBY & WELDRICK, 
Printers to the Academy. 
